An automatic production line for laser welding of motor stators of new energy vehicles

Abstract

The utility model discloses an automatic production line for laser welding of motor stators of new energy vehicles. The loading line includes a tray loading unit and a silicon steel sheet loading unit. The tray loading unit is used to convey the tray. The silicon steel sheet loading unit stacks a plurality of silicon steel sheets and places them on the tray. The feeding line is arranged at the end of the loading line for conveying the tray carrying the stacked silicon steel sheets. The pressurizing device is used to pressurize and measure the height of the stacked silicon steel sheets on the tray. The adjusting device includes a material shifting mechanism and a bearing plate for placing the silicon steel sheets. The welding device is used to weld the stacked silicon steel sheets on the adjusted tray. The adjusting device of the utility model can adjust the number of silicon steel sheets according to whether the stacked silicon steel sheets meet the standards after pressurization and height measurement, and automatically weld through the welding device, avoiding the need for manual operation to increase or decrease the number of silicon steel sheets, improving the automation efficiency, and ensuring the processing quality of the motor stator.

Description

Technical Field

[0001] The utility model relates to the technical field of motor stator processing devices, and in particular to an automatic production line for laser welding of motor stators of new energy vehicles. Background Art

[0002] In the processing of the stator core of new energy vehicle motors, the stacked silicon steel sheets need to be pressurized, measured in height, welded, and other processes, and the turnover of the core in each process will lead to low processing efficiency. In order to improve the processing efficiency of the stator core, the corresponding processes can be connected in series to avoid the turnover process, such as connecting the pressurization and height measurement process and the welding process in series to improve the automation level and processing efficiency.

[0003] In the prior art, such as the automatic welding and inspection production line for stators and rotors of new energy vehicles with application number 202122656375.1, it is disclosed that a pre-stressing thickness measurement station is provided on one side of the manual loading area, and a laser welding machine is provided on the other side of the pre-stressing thickness measurement station. For unqualified raw materials, they are returned to the manual loading area for adding or subtracting materials, and qualified raw materials enter the laser welding machine for welding. In this process, materials are still added or subtracted manually, and the corresponding process needs to be returned, which still leads to low efficiency. Utility Model Content

[0004] The purpose of the utility model is to provide an automatic production line for laser welding of motor stators of new energy vehicles. The adjustment device can adjust the number of silicon steel sheets according to whether the stacked silicon steel sheets meet the standards after pressurization and height measurement, and automatically weld through the welding device, avoiding the need for manual operation to increase or decrease the number of silicon steel sheets, thereby improving automation efficiency and ensuring the processing quality of the motor stator.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: an automatic production line for laser welding of motor stators of new energy vehicles, including a loading line and a feeding line, the loading line includes a tray loading unit and a silicon steel sheet loading unit, the tray loading unit is used to convey the tray, the silicon steel sheet loading unit stacks a plurality of silicon steel sheets on the tray, the feeding line is arranged at the end of the loading line for conveying the tray carrying the stacked silicon steel sheets,

[0006] It also includes the following settings along the feeding direction of the feeding line:

[0007] The pressurizing device is used to pressurize and measure the height of the stacked silicon steel sheets on the tray.

[0008] The adjustment device includes a material shifting mechanism and a carrier plate for placing silicon steel sheets. When the height of the stacked silicon steel sheets on the tray is incorrect after height measurement, the material shifting mechanism moves the silicon steel sheets between the tray and the carrier plate until the stacked silicon steel sheets meet the standard.

[0009] A welding device is used to weld the stacked silicon steel sheets on the adjusted tray.

[0010] As a further optimization, the pallet loading unit includes a first material line, a second material line and a lifting mechanism. The second material line is arranged next to the silicon steel sheet loading unit. A pair of lifting mechanisms are respectively arranged at the beginning and end of the second material line. The lifting mechanism located at the beginning of the second material line is connected in series with the first material line, and the feeding line is connected in series with the lifting mechanism located at the end of the second material line, so as to realize smooth transportation of the pallet.

[0011] As a further optimization, the lifting mechanism includes a lifting module, a support frame and a roller line. The support frame is arranged at the output end of the lifting module, and the roller line is arranged on the support frame for docking with the second material line and the first material line after lifting.

[0012] As a further optimization, the silicon steel sheet loading unit includes a third material line, a manipulator and a carrying mechanism, the carrying mechanism includes a moving component and a bracket, the moving component is installed on the second material line, and a bracket is provided on the output end, the moving component drives the bracket to remove the tray from the second material line and place the silicon steel sheets on the second material line after the manipulator stacks them.

[0013] As a further optimization, the material moving mechanism includes a horizontal module and a lifting module. The horizontal module is arranged on the gantry, and the lifting module is arranged at the output end of the horizontal module, and its output end is provided with an adsorption component for adsorbing silicon steel sheets.

[0014] As a further optimization, the welding device includes a frame and a welding unit, the welding unit includes a lifting mechanism, a pressing mechanism and a welding mechanism, the lifting mechanism is arranged below the feeding line and can be lifted to lift the tray away from the feeding line, the pressing mechanism is arranged on the frame and can be lowered to abut against the upper end of the stacked silicon steel sheets, and the welding mechanism welds the compressed stacked silicon steel sheets.

[0015] As a further optimization, the lifting mechanism and the pressing mechanism are both provided with a rotating assembly that can drive the tray and the stacked silicon steel sheets to rotate horizontally, and welding at different positions can be achieved through rotation.

[0016] As a further optimization, the portion of the feed line located at the welding device is a "mouth"-shaped structure, and the number of the welding units is one to three, which can provide the feed line with a conveying capacity and improve the welding efficiency.

[0017] As a further optimization, the welding mechanism is a laser welder.

[0018] As a further optimization, the new energy vehicle motor stator laser welding automatic production line also includes an air shower / marking device and an oil spray device arranged at the end of the welding device and sequentially arranged along the feeding direction of the feeding line.

[0019] Compared with the prior art, the utility model has the following beneficial effects:

[0020] 1. The adjustment device can adjust the number of silicon steel sheets according to whether the stacked silicon steel sheets meet the standards after pressurization and height measurement, and automatically weld through the welding device, avoiding the need for manual operation to increase or decrease the number of silicon steel sheets, which can improve automation efficiency and ensure the processing quality of the motor stator;

[0021] 2. The tray is automatically fed, and the silicon steel sheets are automatically loaded onto the tray to form stacked silicon steel sheets, realizing automated material preparation and feeding and improving feeding efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural diagram of the utility model.

[0023] Figure 2 It is a top view of the utility model.

[0024] Figure 3 It is a top view of the adjustment mechanism of the utility model.

[0025] Figure 4 It is a top view of the loading line and the feeding line of the utility model.

[0026] Figure 5 This is a structural diagram of the welding device of the present utility model. DETAILED DESCRIPTION

[0027] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0028] like Figures 1 to 4As shown, an automatic production line for laser welding of a new energy vehicle motor stator includes a loading line, a feeding line 30, and a pressurizing device 40, an adjusting device 50 and a welding device 60 arranged in sequence along the feeding direction of the feeding line 30. The loading line includes a tray loading unit 10 and a silicon steel sheet loading unit 20. The tray loading unit 10 is used to convey a tray 1A. The silicon steel sheet loading unit 20 stacks a plurality of silicon steel sheets 100 on the tray 1A. The feeding line 30 is arranged at the end of the loading line for conveying The tray carrying the stacked silicon steel sheets 1B is fed, the pressurizing device 40 can be a structure in the prior art, which is used to pressurize, shape and measure the height of the stacked silicon steel sheets 1B on the tray, and the adjusting device 50 is provided with a gantry 51 on the machine platform, and a carrying plate 53 is provided on the machine platform at least on one side of the conveyor line 30, and a plurality of silicon steel sheets 100 can be stacked on the carrying plate 53, and a material moving mechanism 52 is provided on the gantry 51, and the material moving mechanism 52 can reciprocate between the carrying plate 53 and the material moving mechanism 52 on the feeding line 30. Between the trays carrying the stacked silicon steel sheets 1B, when the height of the stacked silicon steel sheets 1B on the tray is wrong (more or less) after the pressurizing device 40 is pressurized and the height is measured, the material moving mechanism 52 moves the silicon steel sheets 100 between the tray 1A and the carrier plate 53 until the stacked silicon steel sheets 1B meet the standard. That is, when the height of the stacked silicon steel sheets 1B is too high after the height measurement, the number of silicon steel sheets is too large. According to the height difference, the material moving mechanism 52 moves the corresponding number of silicon steel sheets from the stacked silicon steel sheets 1B to the carrier plate 53 one by one. When the height of the stacked silicon steel sheets 1B is not enough, it means that the number of silicon steel sheets is insufficient. According to the height difference, the material shifting mechanism 52 shifts the corresponding number of silicon steel sheets from the carrier plate 53 one by one to the stacked steel sheets 1B to meet the number. After the number of silicon steel sheets is adjusted, the stacked silicon steel sheets 1B continue to be fed on the feeding line 30, and can also be visually inspected to ensure the quantity matches, and then enter the welding device 60, which welds the stacked silicon steel sheets on the adjusted tray.

[0029] In the utility model, the pressurizing device 40 measures the height on the basis of pressurizing. According to whether the measured height meets the standard, the number of stacked silicon steel sheets 1B after pressurization can be adjusted by the adjusting device 50 to ensure that it meets the standard, and then automatic welding is performed by the welding device 60, thereby avoiding the need for manual operation to increase or decrease the number of silicon steel sheets, improving the automation efficiency, and ensuring the quality of the stator.

[0030] Combination Figure 2 and Figure 4As shown, the tray loading unit 10 includes a first material line 11, a lifting mechanism 12 and a second material line 13. The second material line 13 is arranged beside the silicon steel sheet loading unit 20 to realize the requirement of loading the silicon steel sheet onto the tray transported on the second material line 13. A pair of lifting mechanisms 12 are respectively arranged at the beginning and end of the second material line 13. The lifting mechanism at the beginning of the second material line 13 is docked with the first material line 11, and the feeding line 30 is docked with the lifting mechanism at the end of the second material line 13. Since the second material line 13 is docked with the silicon steel sheet loading unit 20, it is necessary to ensure that the height of the docking point of the two is the same. Since the silicon steel sheet loading unit 20 may be at a different height from the first material line 11 and / or the feeding line 30, the second material line 13 is also at a different height from the two on the working surface. It is necessary to use the lifting mechanism 12 to realize the lifting or lowering of the tray during the feeding process to ensure that the tray can smoothly enter the second material line 12 from the first material line 11 and enter the feeding line 30 through the second material line 12.

[0031] As for the specific structure of the lifting mechanism 12, it includes a lifting module 121, a support frame (not shown) and a roller line 122. The support frame is arranged at the output end of the lifting module 121. The roller line 122 is arranged on the support frame for docking with the second material line 13 and the first material line 11 after lifting. The roller line 122 has a driving module, which can be driven to be in a rotating feeding state. When the roller line 122 is flush with the first material line 11, after the tray enters the roller line 122 from the first material line 11, the roller line suspends the feeding state, and is driven to rise by the lifting module 121 to be flush with the starting end of the second material line 13. The roller line 122 resumes the feeding state, and after the tray enters the second material line 13, it is transported to the designated position and docked with the silicon steel sheet loading unit 20. The lifting module 121 drives the roller line to reset; the roller line in the lifting mechanism at the end of the second material line 13 docks the second material line 13 and the feeding line 30 in the same way as the above process.

[0032] Based on the above configuration, the silicon steel sheet feeding unit 20 includes a third material line 21, a manipulator 22 and a carrying mechanism 23. The third material line 21 is used to feed a single silicon steel sheet. The carrying mechanism 23 includes a moving component 231 and a bracket 232. The moving component 231 can rotate a three-axis moving module, which is installed on the frame of the second material line 13. The bracket 232 is arranged at the output end of the moving component 231. The moving component 231 can drive the bracket 232 to remove the tray from the second material line 13 and stack it through the manipulator 22. After stacking the silicon steel sheets, the pallet is placed on the second material line 13. Specifically, the moving component 231 drives the bracket 232 to move in three-dimensional space and supports a pallet from the second material line 13 to separate it from the second material line 13. The robot 22 moves the silicon steel sheets on the third material line 21 to the pallet on the bracket 232. When the silicon steel sheets are stacked to a certain number or weight, the moving component 231 drives the bracket 232 to place the pallet with the stacked silicon steel sheets 1B back on the second material line 13 for feeding.

[0033] Therefore, through the coordination between the first material line 11, the lifting mechanism 12 and the second material line 13, as well as the coordination with the third material line 21, the manipulator 22 and the supporting mechanism 23, a plurality of independent silicon steel sheets can be transported to the feeding line 30 in the state of stacked silicon steel sheets 1B on a pallet, thereby realizing automated material preparation for feeding and improving the processing efficiency of the production line.

[0034] Furthermore, the material transfer mechanism 52 includes a horizontal module 521 and a lifting module 522, wherein the horizontal module 521 is arranged on the gantry 51, and the lifting module 522 is arranged at the output end of the horizontal module 521, and the output end thereof is provided with an adsorption component (not shown) for adsorbing the silicon steel sheet 100, and the horizontal module 521 and the lifting module 522 work together to drive the adsorption component to increase or decrease the number of stacked silicon steel sheets 1B. Of course, if necessary, the material transfer mechanism 52 can also be set to be movable in three directions of space X / Y / Z.

[0035] Combination Figure 1 and Figure 5 As shown, the welding device 60 includes a frame 600 and a welding unit, and the welding unit includes a lifting mechanism 61, a pressing mechanism 62 and a welding mechanism 63. The welding mechanism 63 can be selected as a pair of laser welders arranged on the frame 600 and located on opposite sides of the feeding line 30, which has a lifting function. When the tray carrying the stacked silicon steel sheets on the feeding line 30 is fed into place, the tray can be blocked from moving forward by a blocking mechanism (not shown), and the tray is lifted up and separated from the feeding line 30 by the lifting mechanism 61. The pressing mechanism 62 is arranged on the frame 600 and descends to abut against the upper end of the stacked silicon steel sheets. The stacked silicon steel sheets on the tray are pressed tightly by the joint pressure of the lifting mechanism 61 and the pressing mechanism 62, and the side walls of the stacked silicon steel sheets are welded in the vertical direction by the welding mechanism 63.

[0036] Furthermore, the ends of the lifting mechanism 61 and the pressing mechanism 62 (the end in contact with the bottom end surface of the tray and the end in contact with the upper end surface of the stacked silicon steel sheets) are both provided with a rotating assembly 611, which can drive the tray and the stacked silicon steel sheets to rotate horizontally, so that the whole body rotates synchronously to the next welding position required for welding. In addition, a protective cover 64 can be set on the pressing mechanism 62 to limit the welding action area therein to play a protective role. Of course, the protective cover 64 needs to have multiple side seams to realize the welding action.

[0037] More optimally, the portion of the feeding line 30 located at the welding device 60 is a "mouth"-shaped structure, that is, the tray can be diverted and then merged, so at least one welding unit can be set at each diversion point, and multiple welding units can perform welding actions at the same time, thereby improving welding efficiency and processing efficiency.

[0038] In order to realize the multifunctionality of the automatic production line for laser welding of the motor stator of new energy vehicles and improve the processing efficiency, the existing air shower / marking device 70 and the oil spraying device 80 can also be arranged in the feeding line 30. The air shower / marking device 70 is arranged at the end of the welding device 60. Specifically, a camera or the like can be configured to perform online waste detection on the wire grooves of the stacked silicon steel sheets after welding, and a high-precision laser coaxial displacement sensor can be configured to perform online measurement of the height of the stacked silicon steel sheets after welding, and the qualified stacked silicon steel sheets after welding can be coded, and an ion wind rod can be configured for deep cleaning. The oil spraying device 80 is arranged at the end of the air shower / marking device 70. Specifically, the inner and outer surfaces and the upper and lower end faces of the stacked silicon steel sheets after welding are sprayed with oil online, and an oil mist recovery device can be configured.

[0039] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. An automatic production line for laser welding of motor stators of new energy vehicles, characterized in that: It includes a loading line and a feeding line. The loading line includes a tray loading unit and a silicon steel sheet loading unit. The tray loading unit is used to transport the tray. The silicon steel sheet loading unit stacks a plurality of silicon steel sheets on the tray. The feeding line is arranged at the end of the loading line and is used to transport the tray carrying the stacked silicon steel sheets. It also includes the following settings along the feeding direction of the feeding line: The pressurizing device is used to pressurize and measure the height of the stacked silicon steel sheets on the tray. The adjustment device includes a material shifting mechanism and a carrier plate for placing silicon steel sheets. When the height of the stacked silicon steel sheets on the tray is incorrect after height measurement, the material shifting mechanism moves the silicon steel sheets between the tray and the carrier plate until the stacked silicon steel sheets meet the standard. A welding device is used to weld the stacked silicon steel sheets on the adjusted tray.

2. The automatic laser welding production line for the stator of a new energy automobile motor according to claim 1 is characterized in that: The tray loading unit includes a first material line, a second material line and a lifting mechanism. The second material line is arranged beside the silicon steel sheet loading unit. A pair of lifting mechanisms are respectively arranged at the beginning and end of the second material line. The lifting mechanism located at the beginning of the second material line is connected in series with the first material line, and the feeding line is connected in series with the lifting mechanism located at the end of the second material line.

3. The automatic laser welding production line for the stator of a new energy automobile motor according to claim 2 is characterized in that: The lifting mechanism includes a lifting module, a support frame and a roller line. The support frame is arranged at the output end of the lifting module. The roller line is arranged on the support frame for docking with the second material line and the first material line after lifting.

4. The automatic laser welding production line for the stator of a new energy automobile motor according to claim 2 or 3 is characterized in that: The silicon steel sheet loading unit includes a third material line, a robot and a carrying mechanism, the carrying mechanism includes a moving component and a bracket, the moving component is installed on the second material line, and a bracket is provided on the output end, the moving component drives the bracket to remove the tray from the second material line and place the tray on the second material line after the robot stacks and places the silicon steel sheets.

5. The automatic laser welding production line for the stator of a new energy automobile motor according to claim 1 is characterized in that: The material transfer mechanism comprises a horizontal module and a lifting module. The horizontal module is arranged on a gantry, and the lifting module is arranged at an output end of the horizontal module, and an adsorption component for adsorbing silicon steel sheets is arranged at the output end.

6. The automatic laser welding production line for the stator of a new energy automobile motor according to claim 1 is characterized in that: The welding device includes a frame and a welding unit, and the welding unit includes a lifting mechanism, a pressing mechanism and a welding mechanism. The lifting mechanism is arranged below the feeding line and can be lifted to lift the tray away from the feeding line. The pressing mechanism is arranged on the frame and can be lowered to abut against the upper end of the stacked silicon steel sheets. The welding mechanism welds the compressed stacked silicon steel sheets.

7. The automatic laser welding production line for the stator of a new energy automobile motor according to claim 6 is characterized in that: The lifting mechanism and the pressing mechanism are both provided with a rotating assembly which can drive the tray and the stacked silicon steel sheets to rotate horizontally.

8. The automatic laser welding production line for the stator of a new energy automobile motor according to claim 6 or 7, characterized in that: The portion of the feeding line located at the welding device is a "mouth"-shaped structure, and the number of the welding units is one to three.

9. The automatic laser welding production line for the stator of a new energy automobile motor according to claim 6 is characterized in that: The welding mechanism is a laser welder.

10. The automatic laser welding production line for the stator of a new energy automobile motor according to claim 1 is characterized in that: It also includes an air shower / marking device and an oil spraying device which are arranged at the end of the welding device and are arranged in sequence along the feeding direction of the feeding line.

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